Asserts that two arguments are provided to object.with() and object.without()

[davidjamesstone]

How does this look?

The assertion is for arguments.length === 2 rather than arguments.length <= 2 like you suggested (extra arguments).

[Marsup]

This method is fine as well, I'd only change the tests.
expect(() => Joi.object().with()).to.throw('Invalid number of arguments, expected 2.') would be a better way to write it.

[davidjamesstone]

I agree that form is better. I was originally following the pattern used in the xor tests.

[lock]

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